Will Jones created ARROW-12129:
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Summary: [Python][Gandiva] Infer return types for make_if and
make_in_expression
Key: ARROW-12129
URL: https://issues.apache.org/jira/browse/ARROW-12129
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Reporter: Will Jones
On the {{TreeExprBuilder}} in {{pyarrow.gandiva}}, both the {{make_if}} and
{{make_in_expression}} require the user to specify the return type. These could
easily be inferred from the input values. ARROW-11342 exposes the return type
of nodes as a method, so this should be easy to do once that is merged.
To keep the changes backwards compatible, we can make the return_type an
optional argument.
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